What the Atmos 568 Is
The reference sold as the Atmos 568 belongs to the Jaeger-LeCoultre Atmos family of table clocks. It does not wind and it does not take a battery. A sealed gas capsule at the back expands and contracts with room temperature, and that motion winds the mainspring. The balance wheel turns once per minute, and the clock draws so little energy that a one degree Celsius shift in room temperature buys roughly two days of running time. That mechanism is why a replica is judged on the movement first and the trim second.
Before You Start
- Maker's spec sheet for the reference, printed or on screen
- Digital scale that reads to 10 g
- Tape measure or caliper
- 10x jeweler's loupe
- Level table with daylight or a 5000 K lamp
- Notebook for recording numbers
Step-by-Step Checks
- Write down the factory dimensions and total weight for the reference before you look at the clock.
- Set the clock on the level table and measure height, width, and depth. Replicas of this model often miss by 3 to 8 mm on one axis.
- Weigh the clock. A genuine Atmos 568 with its glass and base sits inside a narrow weight band, and a hollow case shows up here first.
- Study the dial print with the loupe. Check the serifs on the wordmark, the thickness of the minute track, and the edges of the numerals.
- Look at the hands for stamped burrs and for paint that stops short of the tip.
- Tilt the case toward the window and read the gilding. Even plating holds color across flat surfaces; thin plating shifts yellow at the corners.
- Inspect each glass panel for edge chips, waviness, and uneven seating in the frame.
- Watch the balance wheel for one full minute with the clock running. It should complete one rotation, no more and no less.
- Examine the gas capsule at the back for dents, and the chain for kinks or a loose link.
- Check the engraving on the back plate with the loupe for cut depth and letter spacing.
- Let the clock run 24 hours in a room with normal day and night temperature swings, then compare it to a phone clock.
- Match the serial on the clock to the serial on the paperwork and the box label.
Red Flags
A seller who refuses a video of the running balance wheel, a weight figure, or a photo of the back plate is hiding one of the checks above. A clock that stops overnight in a heated room has a bellows or chain fault. Dial print that breaks apart at 10x points to a low grade printed dial rather than a stamped or pad printed one.
Price Tiers
Entry replicas use stamped brass and a printed dial. Mid tier units add a machined base and closer gilding. Top tier replicas copy the case profile, the glass curvature, and the balance rhythm, and those are the ones worth the money. Pay for the movement and the case, not for the box.